Rigid coaxial rotor unmanned helicopter with auxiliary propulsion



FIG. 1 is a perspective view of the rigid coaxial rotor unmanned helicopter with auxiliary propulsion;

FIG. 2 is another perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevational view thereof. 

The ornamental design for a rigid coaxial rotor unmanned helicopter with auxiliary propulsion, as shown and described. 